Linux HOW-TO achieve perfect playback at 23.97 or 59.94 Hz with NVIDIA GPU hardware

JunkDeluxe · 2010-03-27 16:45

New at Ubuntu, so its a bit hard to wrap your mind around these kind of things.
I was having a bunch of problems with tearing af refreshrates, then i finally found this post. I followed it as best as i could, and the refresh rate issue is fixed, but now i am having trouble with the aspect ratio Sad

When i load a 1080p movie i the video is stretched really far out, and the same for 720p.
If i correct the aspect ratio manually for a 1080p movie the aspect ratio wont work on 720p, and i have to adjust it again. Tried all the "normal" modes in XBMC, Stretch, Original, Normal, etc. Can't XBMC pull the native aspect ratio from the file and just send that?

I tried going to the IRC chan, but people werent answering there.

My xorg.conf is as follows:

Please reply if i'm doing anything wrong or you need other information.

Code:

# nvidia-xconfig: X configuration file generated by nvidia-xconfig

# nvidia-xconfig:  version 1.0  (buildmeister@builder63)  Fri Aug 14 17:54:58 PDT 2009

# dePool for Panasonic-TV (DFP-0) ---

# lect" : 1920 x 1080 @  50.0 Hz  

#       : 1920 x 1080 @  50.0 Hz  

#       : 1920 x 1080 @  50.0 Hz  

#       : 1920 x 1080 @  60.0 Hz  

# "     : 1920 x 1080 @ 59.94/60 Hz (CEA-861B Format 16) 

#       : 1920 x 1080 @ 23.97/24 Hz (CEA-861B Format 32) 

#       : 1920 x 1080 @ 59.94/60 Hz (CEA-861B Format 5) 

#       : 1920 x 1080 @ 50 Hz Interlace (CEA-861B Format 20) 

#       : 1280 x  720 @  60.0 Hz  

#       : 1280 x  720 @  60.0 Hz  

#       : 1280 x  720 @ 59.94/60 Hz (CEA-861B Format 4) 

#       : 1280 x  720 @  50.0 Hz  

#       :  720 x  576 @ 50 Hz (CEA-861B Format 18) 

#       :  720 x  576 @ 50 Hz (CEA-861B Format 18) 

#       : (1440)x 576 @ 50 Hz Interlace (CEA-861B Format 22) 

#       :  720 x  480 @ 59.94/60 Hz (CEA-861B Format 3) 

#       :  720 x  480 @ 59.94/60 Hz (CEA-861B Format 3) 

#       : (1440)x 480 @ 59.94/60 Hz Interlace (CEA-861B Format 7) 

#       :  640 x  480 @ 59.94/60 Hz Interlace (CEA-861B Format 1) 

#       :  640 x  480 @ 59.94/60 Hz Interlace (CEA-861B Format 1) 

# Pool for Panasonic-TV (DFP-0): ---

Section "ServerLayout"

    Identifier     "Default Layout"

    Screen         "screen" 0 0

    InputDevice    "Keyboard0" "CoreKeyboard"

    InputDevice    "Mouse0" "CorePointer"

EndSection

Section "InputDevice"

    # generated from default

    Identifier     "Keyboard0"

    Driver         "keyboard"

EndSection

Section "InputDevice"

    # generated from default

    Identifier     "Mouse0"

    Driver         "mouse"

    Option         "Protocol" "auto"

    Option         "Device" "/dev/psaux"

    Option         "Emulate3Buttons" "no"

    Option         "ZAxisMapping" "4 5"

EndSection

Section "Monitor"

    Identifier     "Monitor0"

    VendorName     "Unknown"

    ModelName      "Unknown"

    HorizSync       28.0 - 33.0

    VertRefresh     43.0 - 72.0

    Option         "DPMS"

    Option "ExactModeTimingsDVI" "TRUE"

EndSection

Section "Device"

    Identifier     "nvidia"

    Driver         "nvidia"

    Option "ModeValidation" "NoEdidModes"

EndSection

Section "Screen"

    Identifier     "screen"

    Device         "nvidia"

    Monitor        "Monitor0"

    Option         "NoLogo" "true"

    Option         "DynamicTwinView" "false"

    Option         "FlatPanelProperties" "Scaling = Native"

    Option         "ModeValidation" "NoVesaModes, NoXServerModes, NoVertRefreshCheck, NoHorizSyncCheck"

    Option         "UseDisplayDevice" "DFP-0"

    Option         "ModeDebug" "true"

    Option         "HWCursor" "false"

    SubSection     "Display"

        Modes      "1920x1080_60_0" "1920x1080_24_0"

    EndSubSection

EndSection

Section "Extensions"

    Option         "Composite" "false"

EndSection

Evanrich · 2010-03-28 06:09

just ran your script, but got the following errors...are these ignorable (the can't resolve ones)?

Quote:xbmc@ION-HTPC:/tmp$ sh nvidia.sh
1/6 Backing up settings
2/6 Applying Xorg settings
sudo: unable to resolve host ION-HTPC
[sudo] password for xbmc:
3/6 Restarting Xorg to find available modes
sudo: unable to resolve host ION-HTPC
xbmc-live stop/waiting
sudo: unable to resolve host ION-HTPC
xbmc-live start/running, process 1840
sudo: unable to resolve host ION-HTPC
4/6 Adding 23.97Hz and 59.94Hz to xorg.conf
sudo: unable to resolve host ION-HTPC
sudo: unable to resolve host ION-HTPC
xbmc-live stop/waiting
sudo: unable to resolve host ION-HTPC
xbmc-live start/running, process 2082
5/6 Applying NVIDIA settings
6/6 Applying XBMC settings
--- All done

JuiceZ · 2010-03-30 03:15

Just wanted to say thanks to OP, that guide worked for me. Cool

JumJum · 2010-03-30 07:38

Evanrich Wrote:just ran your script, but got the following errors...are these ignorable (the can't resolve ones)?

The errors are harmless and completely unrelated to the script. My guess is you changed your hostname without adding it to /etc/hosts.

JumJum · 2010-03-30 07:46

JunkDeluxe Wrote:New at Ubuntu, so its a bit hard to wrap your mind around these kind of things.
I was having a bunch of problems with tearing af refreshrates, then i finally found this post. I followed it as best as i could, and the refresh rate issue is fixed, but now i am having trouble with the aspect ratio

When i load a 1080p movie i the video is stretched really far out, and the same for 720p.
If i correct the aspect ratio manually for a 1080p movie the aspect ratio wont work on 720p, and i have to adjust it again. Tried all the "normal" modes in XBMC, Stretch, Original, Normal, etc. Can't XBMC pull the native aspect ratio from the file and just send that?

I tried going to the IRC chan, but people werent answering there.

My xorg.conf is as follows:

Please reply if i'm doing anything wrong or you need other information.

If you use the modes and settings posted here, your computer does output the correct aspect ratio. Your problem is almost certainly that your tv is not set to display exactly what it recieves without changing the aspect ratio.

Find and enable the pixel mapping or dot-by-dot setting on your tv and you should be fine.

satch · 2010-03-30 11:40

When I try to run the script I get the following error msg:

nvidia.sh: 12: Syntax error: "||" unexpected

JumJum · 2010-03-30 16:26

satch Wrote:When I try to run the script I get the following error msg:

nvidia.sh: 12: Syntax error: "||" unexpected

You probably have DOS line feeds in your file. Either download the script using the command in the first post, or fix your current script with:

Code:

cat nvidia.sh | tr -d \\r > nvidia-fixed.sh

satch · 2010-03-30 18:29

JumJum Wrote:You probably have DOS line feeds in your file. Either download the script using the command in the first post, or fix your current script with:

Code:

cat nvidia.sh | tr -d \\r > nvidia-fixed.sh

That solved the problem, thank you! The only problem now is that I have quite a bit of overscan now within ubuntu - what's the best way to fix that? I can adjust the overscan for xbmc, but I have no idea how to adjust it for ubuntu.

JumJum · 2010-03-30 18:36

satch Wrote:That solved the problem, thank you! The only problem now is that I have quite a bit of overscan now within ubuntu - what's the best way to fix that? I can adjust the overscan for xbmc, but I have no idea how to adjust it for ubuntu.

You'll get the best image quality if your TV has a dot-by-dot or or pixel mapping setting. This fixes the overscan in both Ubuntu and XBMC.
Since a few releases back there's also a overscan compensation setting in nvidia-settings. Using this will reduce the image quality slightly.

**bobo1on1** · 2010-03-30 18:49

Overscan is usually a feature of your tv, check the manual.

JuiceZ Junior Member Posts: 12 Joined: Mar 2009 Reputation: 0	2010-03-30 03:15 Post: #33 Just wanted to say thanks to OP, that guide worked for me.
	find quote

JumJum Senior Member Posts: 139 Joined: Jun 2009 Reputation: 7	2010-03-30 07:38 Post: #34 Evanrich Wrote:just ran your script, but got the following errors...are these ignorable (the can't resolve ones)? The errors are harmless and completely unrelated to the script. My guess is you changed your hostname without adding it to /etc/hosts.
	find quote

satch Junior Member Posts: 6 Joined: Mar 2010 Reputation: 0	2010-03-30 11:40 Post: #36 When I try to run the script I get the following error msg: nvidia.sh: 12: Syntax error: "\|\|" unexpected
	find quote

JumJum Senior Member Posts: 139 Joined: Jun 2009 Reputation: 7	2010-03-30 16:26 Post: #37 satch Wrote:When I try to run the script I get the following error msg: nvidia.sh: 12: Syntax error: "\|\|" unexpected You probably have DOS line feeds in your file. Either download the script using the command in the first post, or fix your current script with: Code: `cat nvidia.sh \| tr -d \\r > nvidia-fixed.sh`
	find quote

bobo1on1 cheapass Team-XBMC Developer Posts: 2,757 Joined: Dec 2008 Reputation: 21	2010-03-30 18:49 Post: #40 Overscan is usually a feature of your tv, check the manual.
	find quote